Climate Change

Seeing 2 Kinds of Green Amid the Black Gold of Canada's Oil Sands

When it comes to energy, what we desire is a source that's cheap, reliable and clean -- but so far, there's no way to get all three attributes in one abundant source. And nowhere are the trade-offs that surround those competing desires more obvious than in Canada's oil sands.

Is 'Globesity' the Next Big Thing in Investing?

Obesity. Climate change. Our ever-increasing energy needs. These are just some of the megatrends analysts see coming down the global pike, trends that investors can draft behind and make money from.

Ethanol, the Next Generation: Corn Is Out, Cellulose Is In

It has become clear to politicians and scientists that corn-based ethanol isn't the solution for creating a home-grown fuel source. Enter "cellulosic ethanol," made from wood chips, weeds or algae. Could it be the fuel of the future?

It's Getting Hot in Here: 2010 Temperatures Hit Record High

Global temperatures in 2010 tied 2005 for the warmest on record and are likely to increase further as developing countries expand their economies and produce more greenhouse gases, the National Aeronautics and Space Administration (NASA) said in a report Wednesday.

Natural Gas Boom: Cheap, Clean Fuel Presents Problem, Too

A natural gas boom is coming in the U.S, but while consumers are likely to benefit from the cheap energy source, investors may not. Huge new discoveries of domestic reserves may keep prices down, and the political push toward renewable energy sources could cut into producers' profits.

Climate Change: Smart Businesses Are Preparing Now

From flooding in Pakistan to wildfires in Russia, something seems to be going on. Climate change? A growing number of businesses aren't waiting around to find out for sure. Instead, they're making pragmatic plans to get ready just in case.

Legal Briefing: Obama Backs Utilities in Climate Change Case

Eight states, New York City and three groups won the legal right to sue greenhouse-gas emitting utilities. The companies appealed to the Supreme Court, and the Obama administration has filed a brief supporting them. Find out the implications of this move.

The Inconvenient Truth About Gore's PR Problem

Former U.S. Vice President Al Gore was a leading voice in the fight against climate change just three years ago. Now, amid accusations of sexual misconduct, he faces an image problem. Is the environment losing a key spokesman?